Isolated Rs-232/422/485 Ports; Table A.3:Isolated Rs-232/422/485 Port Assigns; Table A.4:Jumpers To Select Rs-232/422/485 - Advantech UNO-2050G User Manual

A.3 Isolated RS-232/422/485 Ports
Pin Assignments
Table A.3: Isolated RS-232/422/485 Port Assigns
Pin
1
2
3
4
5
Note:
RS-232/422/485 Selection
COM3 and COM4 support 5-wire RS-232, RS-422 or RS-485 interfaces,
and you can set corresponding jumpers to select serial ports as RS-232 or
RS-422/485 interfaces shown in Table A-4.
The system detects RS-422 or RS-485 signals automatically in RS-422/
485 mode.
Table A.4: Jumpers to Select RS-232/422/485
Serial Port
COM3
COM4
1 2 3 4
COM3
5-wire RS-232
Signal Name
RxD
TxD
RTS
CTS
GND
NC represents "No Connection."
Corresponding jumper to select RS-232/422/485
5 1 2 3 4
COM4
RS-422 RS-485 Signal Name
Signal
Name
TxD+
TxD-
RxD+
RxD-
GND
JP4
JP5
31
5
DATA+
DATA-
NC
NC
GND
Appendix A